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Article #385

Re: How can CATV networks Handle Large amounts of upstream data?

#385
From: vanepp
Date: Fri, 03 May 1996 00:00
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David Steinberg <amer2@hookup.net> writes:

>Would anyone care to comment on this question?  David Steinberg

>From: 
>        "Ciaran Clissmann" <ciaranc@net-cs.ucd.ie
>I am working on data-over-CATV, and wonder how it is that CATV networks 
>are going to be able to deal with large amounts of upstream data, such 
>as that produced by videoconferencing, interactive multimedia, etc. The 
>small upstream capabilities of the cable modems I've seen (max claimed 
>speed 10Mbps), are not going to
>be enough, it seems.

>What do you think ?

>Ciaran Clissmann
>Teltec Ireland, University College Dublin
>-----------------------------------------------------------------------------------------
>Ciaran Clissmann, Teltec Ireland, Department of Computer Science, 
>Homepage construction site at htp://dallas.ucd.ie/~ciaranc

	The Rogers folks here in Vancouver (a year or so ago when we were doing
a joint project to install a test cablemodem) stated their intent is to agregate
around 2500 homes via the cablemodems back to neighborhood hub. The hub would
then tie in to a FDDI ring (I expect these days the hub will tie in to an ATM
network) to handle the aggregate data. There are of course still potential 
performance problems if everyone piles on at the same time, but at least they
aren't planning on running the complete plant on cablemodems. I have also
heard rumors that the cablemodem rollout will be delayed a year, so perhaps
things weren't as easy as expected.

Peter Van Epp
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From: vanepp@wimsey.com
Subject: Re: How can CATV networks Handle Large amounts of upstream data?
Date: 1996/05/03
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